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Zoology - Porifera


What does the word "porifera" mean? Pore bearer
How do sponges feed? Filter feeding - sponges filter water and remove nutrients to use for growth
What is the osculum? The osculum is the opening at the top of the sponge where water exits.
What do ostia do? Ostia are small holes on the sides of sponges where food and water enter.
Where are epithelial cells found on the sponge? Epithelial cells are found on the outside of the sponge
What do choanocytes do? Choanocytes trap nutrients and pull water into the sponge by moving their flagella
What do amoebocytes do? Amoebocytes help move nutrients, reproduction, and making spicules.
What is the function of spicules? Spicules form the hard support of the sponge and look like little spikes
What does spongin do? Spongin helps form the support structure of the sponge and is more flexible than spicules
How do sponges reproduce? Sexually or asexually
How are sponges able to reproduce asexually? Gemules, regeneration, and budding
Sponges can make both sperm and egg cells so they are considered to be what? Hermaphroditic
Created by: Mr.Klein